You've clearly never done any work (either development or UX) for a website. If you don't know how your users are using your product, there's no way for you improve it. If the people working on the website want real usability data, then tracking is the best way to get it. Focus groups and forced testing can only give you so much information and it's not exactly easy to get a group of people that includes active users of your site.

I know you didn't intend it this way but your response smacks of complete ignorance.